AprilAire 4223 Drain Spud
AprilAire 4223 Drain Spud
For 500, 550, 558, 560, 568, and 600 Whole-House Humidifiers

- Maintain peak performance of your Indoor Air Quality solution with genuine replacement parts and quality you can trust.
- Compatible Models: 500, 500A, 500K, 500M, 500MK, 500MZ, 500Z, 550, 550A, 558, 560, 560A, 568, 500KZ, 500MKZ, 600KZ, 600MKZ, 600, 600A, 600K, 600M, 600MK, 600MZ, 600Z, 4792, 4793, 4837, 4839
- Materials: ABS
- Actual Measurements: 1.085H x 1.375W x 1.375D (inches)
INCLUDED IN THE BOX:
- (1) 4223 Water Drain Spud
The AprilAire 4223 Drain Spud is the plastic fitting that attaches to the base of the housing of your humidifier. It is designed to connect to a 1/2-inch Inner Diameter Drain Hose (not included).

AprilAire Is Healthy Air
AprilAire is on a mission to make homes healthy. We believe everyone deserves Healthy Air and envision a future with Healthy Air in every home.
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By The Numbers
70 years of filling homes with Healthy Air! Our mission has always been to make homes healthy, creating whole-house solutions inspired by the needs of our customers.
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Invisible Pollutants
Just because you can’t see airborne allergens, doesn’t mean they’re imaginary. Put your health and home first with AprilAire whole-house solutions.
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Healthy Homes
70 years of filling homes with Healthy Air! Our mission has always been to make homes healthy, creating whole-house solutions inspired by the needs of our customers.
